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It was Houston's first UK TV appearance in 12 years, according to TheDaily Mail (U.K.) and comes just a month after the release of her first album in seven years, "I Look to You."

It wasn't the first time the 46-year-old diva had her comeback marred by a shoddy performance. In what was billed as her comeback concert, the singer's voice cracked and she struggled to hit the high notes during a televised three-song performance on ABC's "Good Morning America" in early September.

She apologized to the thousands of fans who had waited for hours to hear the Grammy-Award winner, whose career has been plagued by her destructive relationship with Bobby Brown and a drug addiction that threatened her career.